Abstract
Seismicity in the area of the Semipalatinsk Test Site near the sites of previously conducted nu-clear tests, as well as on the territory of operating quarries in the STS area was investigated. To study man-made events at the test site, the data of field seismic observations for 2005-2010, and 2018-2020 was used. In addition, data from the Kurchatov-Cross permanent seismic array, the Kurchatov IRIS IDA three-component station, and the Kurchatov infrasound station were used. It is shown that during the period of UNE conduction on the territory of the Semipalatinsk Test Site, as well as in recent years in the area of nuclear explosions, induced earthquakes with low-energy were observed. In the area of mineral mines, where intensive blasts are carried out, technogene-ous earthquakes induced by the prolonged impact of industrial explosions have been recorded.
Highlights
In the area of mineral mines, where intensive blasts are carried out, technogeneous earthquakes induced by the prolonged impact of industrial explosions have been recorded
Location and identification of seismic events around north Korean Nuclear test site following the 3 September 2017 underground nuclear test // Вестник Национальным ядерным центром Республики Казахстан (НЯЦ РК). – 2018. – Вып. 2. – С. 11–19
Summary
В настоящее время накоплено большое количество материалов, свидетельствующих об индуцированной сейсмичности в районе проведения мощных подземных ядерных испытаний. Полное разрушение полости взрыва «Канникин» произошло как сложное множественное событие примерно через 38 ч после взрыва (mb~4.9) [Engdahl, 1972]. В случае со взрывом «Милроу» наблюдалось такое же явление, связанное с разрушением полости, которое произошло примерно через 37 ч после взрыва (mb~4.3) [Engdahl, 1972]. Все имели магнитуду меньше 4 и все, в основном, произошли в течение 23 дней после взрыва, глубины событий варьировались в основном от 3.7 до 7.5 км [Engdahl, 1972]. Внимательное изучение природной сейсмичности до и после взрыва «Милроу» и слабых событий до и после взрыва «Канникин» не выявило взаимосвязи этих взрывов с временным и пространственным распределением природной сейсмичности [Engdahl, 1972]. Тектоническая энергия была высвобождена за счёт как релаксации тектонических напряжений в зоне разрушений вокруг заряда, так и тектонических подвижек по разлому [Адушкин, Спивак, 2007]
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